Quackery is the promotion of fraudulent or ignorant medical practices. Random House Dictionary describes a “quack” as a “fraudulent or ignorant pretender to medical skill” or “a person who pretends, professionally or publicly, to have skill, knowledge, or qualifications he or she does not possess; a charlatan”.
The twelve pairs of cranial nerves are continuous with the brain and are numbered from anterior to posterior, according to their attachments to the brain. CN-I is attached to the cerebral hemispheres. CN-II is attached to the central cerebrum via the optic chiasma (hypothalamus), CN-III and IV to the midbrain.